GPTfy Glossary
RAG (Retrieval-Augmented Generation)
An LLM is given relevant retrieved documents as context before generating a response — grounding outputs in your specific data, not just the model's training.
RAG is the standard pattern for making LLMs useful with company-specific data. The flow: (1) user asks a question; (2) the question is embedded as a vector; (3) the system retrieves the K most similar documents from a vector database; (4) retrieved documents are stuffed into the prompt as context; (5) the LLM generates a grounded response.
For Salesforce, RAG enables answering questions like "What's the history of issues with Acme Corp?" — the system retrieves the relevant Cases, Knowledge Articles, and email threads, then the LLM synthesizes a response. Without RAG, the LLM would either fabricate or refuse to answer.
Modern RAG variations include: hybrid retrieval (combining vector and keyword search), reranking (using a second model to refine retrieval), and GraphRAG (using knowledge graphs alongside vectors). gptfy's RAG-in-Salesforce feature implements production-grade RAG with PII masking and audit trails over Salesforce data.
See RAG (Retrieval-Augmented Generation) in GPTfy
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